EP2881230A1 - Moule de pneu segmenté sans orifice - Google Patents

Moule de pneu segmenté sans orifice Download PDF

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Publication number
EP2881230A1
EP2881230A1 EP14194314.2A EP14194314A EP2881230A1 EP 2881230 A1 EP2881230 A1 EP 2881230A1 EP 14194314 A EP14194314 A EP 14194314A EP 2881230 A1 EP2881230 A1 EP 2881230A1
Authority
EP
European Patent Office
Prior art keywords
assembly
mold
tire mold
sidewall assembly
sealing means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14194314.2A
Other languages
German (de)
English (en)
Other versions
EP2881230B1 (fr
Inventor
Gauthier Piret
Johan Peter Dahlberg
Kevin Roger Marie Ghislain Colle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of EP2881230A1 publication Critical patent/EP2881230A1/fr
Application granted granted Critical
Publication of EP2881230B1 publication Critical patent/EP2881230B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Definitions

  • the present invention relates to a mold for curing/producing tires and to a method and apparatus or mold container associated therewith, and more particularly, to a ventless tire mold.
  • a tire mold may be a two-piece tire mold featuring various seals and pressurized compartments. Such a two-piece tire mold may utilize a vacuum.
  • a tire mold may be segmented, as opposed to a two-piece tire mold.
  • Conventional tire molds have small holes or vents to allow air trapped within the mold to escape.
  • rubber that has been vulcanized within the vents in the tire mold may extend outwardly from the surface of the tire in the form of burrs or extensions. These burrs may detract from the tire's appearance and may be shaved from the tire as a final step in the tire manufacturing process. While the rubber burrs have been a necessary result of the tire manufacturing process, they were undesirable for several reasons.
  • the extensions are unnecessary waste.
  • the extensions create undesirable material, which must be collected and properly disposed.
  • the removal of the extensions requires an extra step in the tire manufacturing process, thus raising the cost of manufacturing the tire due to the extra space, labor, time, and equipment required.
  • the overall cost of the molds increases and the overall cost of cleaning the vents may also be substantial. Tires could be less expensive and more attractive in appearance when such extensions are eliminated.
  • Ventless segmented tire molds and methods may be simpler in design, more effective in use, and more adaptable for production of tires on a commercial scale.
  • Tire designs are becoming more and more complex. Evacuating air through vents becomes more and more challenging. Also, space for installation becomes less and less. The vents are becoming smaller and smaller and more and more vents are needed in order to evacuate all the cavities appropriately. Some tire compounds with a low viscosity are difficult to evacuate with vents. As a result, the cost of the venting and the maintenance of the vents is increasing. Vents may plug more and more often. Molds require more frequent cleaning. Vents, when definitively plugged, must be changed out more and more often. The total cost of the tires that have to be scrapped due to these issues is significant. Curing under vacuum in a ventless mold resolves many of all these issues.
  • the invention relates to an apparatus in accordance with claim 1 and to a system in accordance with claim 9.
  • the mold is a ventless tire mold.
  • the apparatus is a mold container.
  • An apparatus in accordance with a preferred aspect of the present invention provides a vacuum in a segmented tire mold having an upper sidewall assembly and a lower sidewall assembly, a plurality of radially moveable tread mold segments operable with the upper sidewall assembly and the lower sidewall assembly to define a tire mold cavity in the closed position of the tire mold, a conical actuating ring assembly surrounding the tread mold segments and the tread mold segments to provide radial movement of the tread mold segments into engagement with the upper sidewall assembly and the lower sidewall assembly.
  • the apparatus includes a top sealing means between the actuating ring assembly and the upper sidewall assembly and a bottom sealing means between the actuating ring assembly and the lower sidewall assembly such that the tire mold is airtight only when fully closed and evacuated only when fully closed.
  • a screw sealing mean may be provided between external screws and mold pieces.
  • an inside sealing means may be provided between adjacent surfaces within the tire mold.
  • the top sealing means may comprise cellular or massive silicone.
  • the bottom sealing means may comprises cellular or massive silicone.
  • the screw sealing means may comprise cellular or massive silicone.
  • the inside sealing means comprises cellular or massive silicone.
  • the tire mold comprises no sliding seals.
  • two sealing means are disposed between the spacer plate and the sidewall assembly on one side and the actuating ring assembly on the other side.
  • the bottom sealing means includes a sealing member disposed between the bottom surface of the actuating ring assembly and the lower sidewall assembly at the closing of the tire mold.
  • the tread mold segments are connected to the upper sidewall assembly by support means permitting radial movement of the tread mold segments in response to vertical movement of the actuating ring assembly relative to the tread mold segments and the support means is covered to maintain the integrity of the tire mold cavity for application of vacuum.
  • a system in accordance with a preferred aspect of the present invention provides a vacuum in a segmented tire mold having an upper sidewall assembly and a lower sidewall assembly, a plurality of radially moveable tread mold segments operable with the upper sidewall assembly and the lower sidewall assembly to define a tire mold cavity in the closed position of the tire mold, a conical actuating ring assembly surrounding the tread mold segments and the tread mold segments to provide radial movement of the tread mold segments into engagement with the upper sidewall assembly and the lower sidewall assembly.
  • the system includes a top sealing means between the actuating ring assembly and the upper sidewall assembly, a bottom sealing means between the actuating ring assembly and the lower sidewall assembly, a screw sealing means between external screws and the upper sidewall assembly, and an inside sealing means between adjacent surfaces within the tire mold such that the tire mold is airtight only when fully closed and evacuated only when fully closed.
  • the top sealing means comprises cellular or massive silicone.
  • the bottom sealing means comprises cellular or massive silicone.
  • the screw sealing means comprises cellular or massive silicone.
  • the inside sealing means comprises cellular silicone.
  • the upper sidewall assembly has a radially outer cylindrical surface
  • the actuating ring assembly has a radially inner cylindrical surface in alignment with the outer cylindrical surface of the upper sidewall assembly and the bottom sealing means is disposed between the outer cylindrical surface of the upper sidewall assembly and the inner cylindrical surface of the actuating ring assembly.
  • the bottom sealing means includes a sealing member disposed in a circumferential groove in the outer cylindrical surface of the upper sidewall assembly for sealing engagement with the inner cylindrical surface of the actuating ring assembly during closing of the tire mold.
  • the tread mold segments are connected to the upper sidewall assembly by support means permitting radial movement of the tread mold segments in response to vertical movement of the actuating ring assembly relative to the tread mold segments and the support means is covered to maintain the integrity of the tire mold cavity for application of vacuum.
  • the support means comprises pocket slots closed at the top in the upper sidewall assembly and retainer tee members on the tire mold segments for engagement in the pocket slots.
  • Two primary regions are to be sealed when curing with a standard segmented mold: the bottom and the top.
  • a space between an actuating ring and a bottom container plate may be sealed.
  • a seal may be fixed to the actuating ring. The seal may be compressed between the actuating ring and the bottom container plate during each cure cycle to fill the varying gap between the actuating ring and the bottom container plate.
  • a space between the actuating ring and a top container plate may be sealed.
  • a spacer plate, fixed on the actuating ring may close a gap between the actuating ring and the top container plate by covering slots of retainer tee members.
  • a first seal may be installed between the actuating ring and the spacer plate and remain static.
  • a second seal may be fixed to the top container plate and may be compressed between the spacer plate and the top container plate during each cure cycle to fill the varying gap between the two pieces. Screws and stop bolts in the mold segments may also be sealed by sealing washers.
  • the region between the top and bottom container plates and mold plates may also be sealed. O-rungs may be used, but other types of seal may also be used.
  • the system in accordance with the present invention maintains the mold in an airtight condition only when the container is completely closed.
  • the mold may be evacuated by a pumping assembly when completely closed. All these seals may thus be non-sliding.
  • the seals may be compressed and may be either static or compressed and released at each cure cycle.
  • FIG. 1 is a schematic cross-sectional view of a segmented tire mold 10 for use with the present invention.
  • Primary elements of the tire mold 10 include an upper sidewall mold assembly 12 and a lower sidewall mold assembly 14.
  • the upper sidewall mold assembly 12 includes an upper sidewall mold plate 52.
  • the lower sidewall assembly 14 includes a lower sidewall mold plate 56.
  • the tire mold 10 further includes a tread mold segment 16.
  • a plurality of tread mold segments 16 are radially moveable to assemble or disassemble the segmented tire mold about an unvulcanized green tire.
  • the upper sidewall mold assembly 12 comprises only two members, an upper sidewall mold plate 52 and an O-ring 36 forming a structure impervious to air. Therefore, when coupled with the O-ring 36, the upper sidewall mold plate 52 may provide an air barrier for drawing a vacuum in a tire mold cavity 18.
  • the upper and lower sidewall mold assemblies 12, 14, respectively, and the tread mold segments 16 together define the tire mold cavity 18 within the tire mold 10.
  • the tread segments 16 are moveable radially inward or outward along a sloped slide 22, in response to vertical movement by a conical actuating ring 20.
  • the actuating ring 20 is moveable in a generally axial direction or a vertical direction relative to the unvulcanized tire within the tire mold 10.
  • a first sealing means seals a gap between the actuating ring 20 and a lower mold member 24.
  • the first sealing means may include an O-ring 30 and an abutting bronze cylindrical surface 32 on the actuating ring 20.
  • the abutting bronze surface 32 may be affixed to the actuating ring 20 and may about the lower mold member 24.
  • a second sealing means seals a gap between the actuating ring 20 and the upper sidewall mold plate 52.
  • the second sealing means may include an O-ring 36 which abuts a radially inner cylindrical surface 38.
  • the upper sidewall mold plate 52 may have a radially outer cylindrical surface 42 in alignment with the radially inner cylindrical surface 38 of the actuating ring 20.
  • the O-ring 36 may be disposed in a circumferential groove 48 in the outer cylindrical surface 42 of the upper sidewall mold plate 52 and in sealing engagement with the inner cylindrical surface 38 of the actuating member 20 when the tire mold 10 is in a closed condition.
  • the tread mold segments 16 may be connected to the upper sidewall mold member 52 by pocket type slots 58 which may be closed at the top in the upper sidewall mold plate 52 and retainer tee members 62 on the tread mold segments 16 for sliding engagement in the pocket type slots ( FIGS. 1 & 2 ).
  • the tread mold segments 16 may be assembled into slide blocks and arranged on a table 80.
  • the table 80 may have a lubricated surface such that the tread mold segments 16 may be easily arranged in appropriate positions.
  • the retainer tee members 62 may be inserted into the pocket type slots 58.
  • the O-ring 36 may be inserted into the circumferential groove 48 in the upper sidewall mold plate 52.
  • the upper sidewall mold plate 52 may be suspended in a raised position while the tread mold segments 16 and retainer tee members 62 are slid in place ( FIGS. 2-6 ).
  • the upper sidewall mold plate 52 may be clamped on the table 80 with a wooden clamp bar 90 by a clamping rod 93. Clamping may not be necessary where weight keeps parts in place.
  • the actuating ring 20 may be fitted with the O-ring 30 and lowered over the assembly 12. Stop bolts 94 ( FIG. 6 ) may then be installed. Next, the wooden clamp 90 on the upper sidewall mold plate 52 may be removed with the clamping rod 93. With reference to FIG. 6 , the assembly 12 and actuating ring 20 may now be positioned over the lower sidewall mold plate 56, which has been secured to a separate table 100 and clamped with a wooden clamp 102. The suspended assembly 92 and actuating ring 20 may be lowered onto the lower sidewall mold plate 56 and positioned so that the tire mold 10 is fully closed. At this time, shipping straps (not shown) may be installed and the tire 10 made ready to move and install in a tire curing press.
  • An example procedure for mounting the tire mold 10 into a curing press is as follows.
  • the tire mold 10 is set in position in a curing press.
  • Two temporary hold-down clamps are installed in platen slots 180°opposed t o each other.
  • the tire mold 10 is bolted to the top of the curing press.
  • a sealant or seal such as a gasket, is applied to the shoulders of the bolts for sealing.
  • the bolts are installed through the bottom sidewall plate 56 into the platen.
  • the temporary clamps 94 and 102 are removed.
  • the above procedure enables the tire mold 10 to be installed into a curing press with the O-rings 30, 36 in place.
  • the O-rings 30, 36 may be lubricated with an appropriate lubricant.
  • the O-rings 30, 36 may be lubricated when installed and when the tire mold 10 is cleaned. At every cleaning cycle, the O-rings 30, 36 may be inspected for excessive wear or fraying and may be replaced when worn or damaged.
  • example disassembly of the tire mold 10 will be described as follows.
  • the tire mold 10 has been removed from the curing press and set on a table 110. Shipping straps (not shown) have been removed.
  • the lower sidewall mold plate 56 is clamped to the table 110 with wooden clamp 102.
  • eye bolts 114 are installed in the actuating ring 20 to raise the balance of the assembly and place it on a second table 116 with a lubricated surface 118.
  • the upper sidewall mold plate 52 is clamped to the table 116 with a wooden clamp 90.
  • the stop bolts 94 (not shown) are removed.
  • the actuating ring 20 is lifted via the eye bolts 114 and set on another table (not shown) for lubrication.
  • the wooden clamp 90 is now removed from the upper sidewall mold plate 52.
  • the eye bolts 122 are installed in the upper sidewall mold plate 52.
  • the upper sidewall mold plate 52 is suspended to release its weight off of the slide blocks 16.
  • tee handles 126 may be threaded into retraction tee holes in the slide blocks 65 and used to pull the side blocks radially outwardly so that the retainer tee members 62 clear the pocket type slots 58 in the upper sidewall mold plate 52.
  • the tire mold 10 is now ready for cleaning and/or lubricating.
  • the tire mold 10 of FIG. 1 has no vent holes.
  • the upper and lower sidewall mold plates 52, 56 of the tire mold 10 are each a single piece, integral.
  • the integral, one-piece design of the upper and lower sidewall mold plates 52, 56 of the tire mold 10 thus eliminates seals between the multiple parts.
  • the tire mold 10 may be closed at the top with the O-ring 36 sealing the tire mold cavity 18.
  • the bottom sidewall mold plate 56 may have a circular flange 72 and the O-ring 30 at the outside diameter of the bottom sidewall mold ring.
  • the actuating ring 20 may include a bronzed radially inner cylindrical surface 38 and a bronzed radially outer cylindrical surface 32 to minimize wear and a closer fit with mating surfaces.
  • the tire mold 10 may accept same size tires as a standard mold, may fit the same presses, and may provide a superior tire product.
  • the tire mold 10 includes an upper sidewall mold assembly 12, a lower sidewall mold assembly 14, and tread mold segments 16.
  • the upper and lower sidewall mold assemblies 12, 14 are not a single piece, as in the example shown in FIG. 1 , but instead comprise multiple pieces.
  • the upper sidewall mold plate 52 abuts and cooperates with the upper mold support member 54 while the lower sidewall mold plate 56 abuts and cooperates with the lower mold member 24.
  • An actuating ring 20 produces radial movement of the tread mold segments 16 as illustrated previously.
  • the actuating ring 20 is connected to the tread mold segments 16 via retraction tee bolts 96. Retainer tee members 62 slide within pocket type slots 58.
  • the lower sealing means 132 includes a spring sealing ring 136 mounted on the actuating ring 20.
  • the sealing ring 136 slides against a cylindrical shell 140 fixed on a bottom container plate 142.
  • Four flat pins 146 are used to pre-center the actuating ring 20.
  • the flat pins 146 are spaced 90°about the circumference of the tire mold 10 and are located in such a way as to best use the available space within the curing press (not shown).
  • the available space within the curing press may be square-shaped while the tire mold 10 may be round; therefore, the pins 146 may be placed in the corners of the square-shaped press space.
  • the diameters of the actuating ring 20 and the cylindrical shell 140 may be thereby reduced.
  • the upper sealing means 130 may be a sealing bladder 154, as described below.
  • another upper sealing means 130 may include a spring ring 158 which slides against the radially inner surface 44 of the actuating ring 20.
  • the pre-centering of the upper mold plate 52 is accomplished by a pre centering ring 160 which may be made of PTFE or equivalent.
  • the retainer tee members 62 shown in FIG. 1 may be replaced by a link system between the slide blocks 16 and the upper mold plate 52.
  • a mechanism to provide improved centering of the upper sidewall mold plate 52 with relation to the actuating ring 20 and lower mold member 24 is illustrated.
  • a centering rod 166 may be mounted on top of an upper press platen 168.
  • a sleeve 170 may include a flange 172 and an extension 176.
  • the mold stroke, designated by line 188 may be adjustable.
  • the bottom surface 190 of the cap abuts the top surface 178 of the extension 176.
  • the device shown in FIG. 14 may not be necessary for operation of the tire mold 10, but may be used to limit segment retraction and thereby replace the stop bolts 94 used in other examples.
  • the tire mold 10 may be air-tight so that the vacuum may be communicated to the mold cavity 18.
  • the arrows indicate the flow of air being evacuated from the mold cavity 18 by the vacuum.
  • the lower mold member 24 is mounted on a press board (not shown) and is stationary.
  • the upper sidewall mold plate 52 is fastened to a top beam (not shown) of the curing press (not shown) and carries the upper sidewall mold plate 52 and the tread mold segments 16.
  • the upper sidewall mold plate 52 lowers the actuating ring 20, causing the tread segments 16 to swing on links 192 and move radially inward.
  • the sequence of press closing begins with the top press beam being lowered.
  • the actuating ring 20 is lowered.
  • the upper sidewall mold plate 52 and tread mold segments 16 are lowered. This procedure is performed in such a way as to maintain a vacuum by maintaining a seal.
  • the tire mold 10 is shown in a closed position with the vacuum already drawn on it.
  • the tire mold 10 includes an upper sidewall mold plate 52, a lower sidewall mold plate 56, tread mold segments 16, and an actuating ring 20.
  • the upper sealing means 130 is a sealing bladder 154.
  • the sealing means further includes O-rings 194, 196.
  • the lower sealing means includes O-rings 200, 202.
  • the next step in the sequence is illustrated, wherein the actuating ring 20 moves downward, causing the tread mold segments 16 to move radially inward, and lessening the stretch on bladder 154. Vacuum is communicated by a passageway 210 and the tire mold 10 is evacuated. With reference to FIG. 19 , the tire mold 10 is shown in a closed position and the vacuum is shut off while the tire 214 is vulcanized.
  • a vacuum container 500 in accordance with the present invention seals a conventional tire mold to make it airtight.
  • top (left & right) and the bottom locations cellular or massive silicone may be compressed and may fill any varying gap between the different pieces.
  • the vacuum container 500 is airtight only when fully closed and pumped/evacuated only when fully closed.
  • Conventional containers, such as the tire mold 10 may initially be partly closed and already airtight in this "not yet fully closed” condition. Subsequently, the tire mold 10 may be evacuated and, while pumping, the container may be fully closed.
  • the ventless mold construction saves costs not only in terms of buying and installing the large number of vents, but also in terms of maintenance of the tire mold 10 (no vents get lost, no vents need to be cleaned/removed, less molds out of service for maintenance, etc.).
  • the vacuum container 500 can be externally smaller than conventional containers and preferably has no sliding parts thereby eliminating wear between such parts. During curing of a tire, small amounts of air may escape from the vacuum container 500 as it is opened to the outside through small gaps and surface roughness between neighboring parts. Hence, there is no need for vents or means to remove such air.
  • the vacuum container 500 When the vacuum container 500 is closed, the tire mold 10 may be evacuated over a period of time of about 30 sec. Thereafter, the vacuum pump may be disconnected and the vacuum container 500 with the tire may be opened to environmental pressure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
EP14194314.2A 2013-11-27 2014-11-21 Moule de pneu segmenté sans orifice Active EP2881230B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361909634P 2013-11-27 2013-11-27

Publications (2)

Publication Number Publication Date
EP2881230A1 true EP2881230A1 (fr) 2015-06-10
EP2881230B1 EP2881230B1 (fr) 2017-10-18

Family

ID=51987016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14194314.2A Active EP2881230B1 (fr) 2013-11-27 2014-11-21 Moule de pneu segmenté sans orifice

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EP (1) EP2881230B1 (fr)
CN (1) CN104669472A (fr)
BR (1) BR102014029660A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3335849A4 (fr) * 2015-08-12 2019-03-06 Sino-Arp Tires Equipment Technology (Shouzhou) Co. Ltd. Dispositif de verrouillage rapide de moule
EP3517285A1 (fr) * 2018-01-24 2019-07-31 Nexen Tire Corporation Réservoir à vide pour le durcissement de pneus
EP4180215A2 (fr) 2021-11-15 2023-05-17 The Goodyear Tire & Rubber Company Procédé de moulage de pneumatiques
EP4180216A2 (fr) 2021-11-15 2023-05-17 The Goodyear Tire & Rubber Company Moule pour pneumatique pour le moulage sans event
EP4292800A1 (fr) 2022-06-16 2023-12-20 The Goodyear Tire & Rubber Company Procédé de moulage pour faciliter le relâchement d'un pneu

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110421754B (zh) * 2019-09-18 2021-01-15 山东垚坤模具有限公司 一种无气孔的轮胎模具
KR102320139B1 (ko) * 2020-09-07 2021-11-02 넥센타이어 주식회사 타이어 가류용 진공 컨테이너

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595553A (en) * 1984-11-23 1986-06-17 The B. F. Goodrich Company Method for ventless tire molding
EP0701894A2 (fr) * 1994-07-20 1996-03-20 The Goodyear Tire & Rubber Company Moule à secteurs sans moyens de dégazage et procédé de vulcanisation de pneus utilisant ce moule
EP1495848A1 (fr) * 2002-02-15 2005-01-12 Bridgestone Corporation Dispositif de vulcanisation de pneus
US20100193134A1 (en) * 2007-06-28 2010-08-05 Bridgestone Corporation Vacuum container for a tyre curing mold
US20130008611A1 (en) * 2011-07-05 2013-01-10 Rob Marcus Multi-Piece Sealing Sleeve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7963756B2 (en) * 2009-11-18 2011-06-21 The Goodyear Tire & Rubber Company Segmented tire mold

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595553A (en) * 1984-11-23 1986-06-17 The B. F. Goodrich Company Method for ventless tire molding
EP0701894A2 (fr) * 1994-07-20 1996-03-20 The Goodyear Tire & Rubber Company Moule à secteurs sans moyens de dégazage et procédé de vulcanisation de pneus utilisant ce moule
EP1495848A1 (fr) * 2002-02-15 2005-01-12 Bridgestone Corporation Dispositif de vulcanisation de pneus
US20100193134A1 (en) * 2007-06-28 2010-08-05 Bridgestone Corporation Vacuum container for a tyre curing mold
US20130008611A1 (en) * 2011-07-05 2013-01-10 Rob Marcus Multi-Piece Sealing Sleeve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3335849A4 (fr) * 2015-08-12 2019-03-06 Sino-Arp Tires Equipment Technology (Shouzhou) Co. Ltd. Dispositif de verrouillage rapide de moule
EP3517285A1 (fr) * 2018-01-24 2019-07-31 Nexen Tire Corporation Réservoir à vide pour le durcissement de pneus
EP4180215A2 (fr) 2021-11-15 2023-05-17 The Goodyear Tire & Rubber Company Procédé de moulage de pneumatiques
EP4180216A2 (fr) 2021-11-15 2023-05-17 The Goodyear Tire & Rubber Company Moule pour pneumatique pour le moulage sans event
EP4180216A3 (fr) * 2021-11-15 2023-07-19 The Goodyear Tire & Rubber Company Moule pour pneumatique pour le moulage sans event
EP4292800A1 (fr) 2022-06-16 2023-12-20 The Goodyear Tire & Rubber Company Procédé de moulage pour faciliter le relâchement d'un pneu

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Publication number Publication date
BR102014029660A2 (pt) 2015-07-14
EP2881230B1 (fr) 2017-10-18
CN104669472A (zh) 2015-06-03

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